Extended Wear		Rigid Gas Permeable
Bifocal				Tints
	Conventional  Contact lenses		Torics for  Astigmatism
		Disposable & Planned Replacement

Rigid Gas-Permeable -- Made of slightly flexible plastics that allow oxygen to pass through the lenses  to the eyes.  These contacts provide excellent vision, have a short adaptation period, are comfortable to wear, correct most vision problems, are easy to put on and care for and have a long life, 3-4 years.  These contacts require consistent wear to maintain adaptation.  They correct for astigmatism much better and often can slow down or prevent increases in myopia.

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Tints -- Tints are colored contact lenses that can alter or enhance the natural color of the eye. Tints are available in most contacts. To change eye color in a complete and natural way, soft contact lenses are required due to their larger size. They will cover the entire cornea thus covering the entire iris ( the colored part).

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Torics for Astigmatism -- These contacts correct astigmatism. They have two powers to correct for the two different curve on an astigmatic cornea. Often these lenses will have both front and back curves to correct for different types and degrees of correction. They are more expensive, take longer to make and are more time consuming to fit. Several lens designs may have to be tried until a good, comfortable and well fitting lens can be dispensed.

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Disposable -- These contacts are worn for a period of time, and then discarded. While less expensive per unit in a years time they can actually be more expensive than daily wear standard soft lenses. Each case is different. The patient needs to discuss their own case with their doctor.

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Planned Replacement -- Soft daily wear lenses that are replaced on a planned schedule.  They require simplified cleaning and disinfecting, are good for eye health, and are available in most prescriptions.  The vision in these contacts may not be as sharp, and they cannot correct all vision problems.

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Conventional contact lenses -- Contacts that are made to last for a longer periods of time. Many patients can wear a pair 12, 18 and even 24 months before they need to be replaced.

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Bifocal --  These contacts allow the wearer to see objects that are either close or far away. These lenses are available in both RGP (ridged) and soft contact lenses. Ridged RGP lenses have proven to be much better in providing better visual function in many cases. Again it is an individual situation as to the benefits, advantages and function of each lens type.

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Extended Wear -- Available for overnight wear in soft or RGP lenses.  These contacts can usually be worn up to seven days without removal.  However, they cannot correct all vision problems, require regular office visits for follow up care, and must be replaced at least annually.

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